SIDE WALL SUPPORT PIER AND METHOD FOR FOUNDATION OF MANUFACTURED BUILDING
An apparatus for supporting a lateral portion of a manufactured building having a support beam, comprising a ground member for being received on a ground surface and a joist bracket attached to at least one joist in a lateral portion of the manufactured building. A pivotably attached joist tube disposed in a first position between the ground member and the joist bracket is longitudinally movable to a second position for bearing forcibly therebetween and thereby supporting the lateral portion of the manufactured building. A method of supporting a lateral portion of a manufactured building having a support beam is disclosed.
The present invention relates to foundations for manufactured buildings. More particularly, the present invention relates to apparatus and methods for a foundational support of a lateral portion of a manufactured building.
BACKGROUND OF THE INVENTIONManufactured buildings, such as manufactured or mobile homes and offices, are manufactured remote from an installation site and moved on wheels to the installation site. The manufactured building typically includes one or more long, longitudinal support I-beams underneath the building. A plurality of spaced-apart floor joists extend transverse to a longitudinal axis of the support beam. Adjacent floor joists define gaps. The gaps on opposing sides of the manufactured building are closed by perimeter rim joists that attach to the ends of the floor joists. A subfloor attaches to the floor joists. The side walls of the manufactured building define openings for door ways and windows or for other load-imposing features such as chimneys or fireplaces.
During typical installation of a manufactured building at a site, a plurality of piers placed between a ground surface and the support beam support the building on the site. The piers sit on or attach to footings such as metal plates or pans, plastic plates, or concrete pads placed or poured on-site during installation. The number, and positioning, of piers is specified by the manufacturer of the manufactured building or by an authority having jurisdiction for such specifications.
Different types of piers are known. One type of pier uses stacks of cement blocks that sit on footings and transfer load from the support beam. Other piers use metal tubular members that connect between a ground pan and the support beam. Additionally, some foundation systems for manufactured buildings also resist lateral and longitudinal wind and/or seismic forces on the building. These foundation systems typically use a ground pan and an elongated strut connected at a lower end to the ground pan and at the upper end to a support beam of the manufactured building. The elongated strut can be oriented parallel to a longitudinal axis of the support beam or extend laterally from underneath one support beam to connect to the adjacent support beam of the manufactured buildings, or both. Such foundations provide resistance to wind and/or seismic forces in the lateral and longitudinal directions.
Often the support beam is positioned inwardly of a lateral perimeter portion of the manufactured building. The plurality of floor joists extends outwardly as cantilevers laterally of the I-beam. This structure disposes a portion of the manufactured building lateral of the support beams. Piers are necessary for supporting perimeter portions of the manufactured buildings. Openings in the side walls for windows and doorways require a support pier proximate the opening. Generally, an opening of 48 inches or more in a side wall of a manufactured building requires pier supports. For example, door openings require two support piers on the opposing sides of the opening at the perimeter of the building. Chimneys and fireplaces or other load-bearing objects (such as water beds) may require additional pier support on the perimeter of the building. Roof loads (for example, snow loading) may require use of additional piers on the perimeter. Pier installation requires time and labor.
Accordingly, there is a need for an improved pier to support portions of a manufactured building lateral of the support beam and proximate an opening in a side wall of a manufactured building. It is to such that the present invention is directed.
BRIEF SUMMARY OF THE INVENTIONThe present invention meets the need in the art by providing a support apparatus for supporting a lateral portion of a manufactured building having a support beam, comprising a ground member for being received on a ground surface beneath a manufactured building having a portion thereof lateral of a support beam and a joist bracket attached to at least one joist within the lateral portion of the manufactured building. A joist tube is disposed between the ground pan and the joist bracket. The joist tube bears against the joist bracket and the ground member for transferring a load from the lateral portion of the manufactured building to the ground and thereby supporting the lateral portion of the manufactured building.
In another aspect, the present invention provides a method for supporting a lateral portion of a manufactured building having a support beam, comprising the steps of:
(a) positioning a ground member on a ground surface below a lateral portion of a manufactured building;
(b) attaching a joist bracket to at least one joist within the lateral portion of the manufactured building; and
(c) disposing a joist tube in bearing contact between the ground member and the joist bracket,
whereby the joist tube bears forcibly against the joist bracket to support the lateral portion of the manufactured building.
Objects, advantages, and features of the present invention will be apparent upon a reading of the detailed description together with observing the drawings and reading the appended claims.
With reference to the drawings, in which like elements have like identifiers,
The support beam 12 underneath the manufactured building supports the plurality of spaced-apart floor joists 26 disposed transverse to a longitudinal axis of the support beam 12. A perimeter rim joist 29 attached outwardly of the ends of the floor joists 26. The joists 26 support a floor 28 of the manufactured building 10. A portion 30 of the manufactured building extends laterally of the support beam 14.
As best illustrated in
A U-shaped connector 40 has a base 44 and two opposing side walls 42 or upstanding legs extending from the base 44. The connector 40 attaches to the ground pan 24. The U-shaped connector 40 in the illustrated embodiment is made from a 3/16 inch G-60 galvanized stamped coil stock material. The base 44 defines at least one opening for a fastener to extend though an aligned opening in the ground pan 24 to rigidly attach the connector to the ground pan. The side walls 42 define aligned openings for receiving a bolt 48 that is secured with a nut (not illustrated). The bolt 48 extends through the aligned openings in the side walls 42 and through an open-ended tube 50 of a T-bolt 52. The T-bolt 52 includes the tube 50 and a threaded member 54. The threaded member 54 welds to the tube 50. In the illustrated embodiment, the tube 50 is a 12 gauge 1 inch×1 and ⅝ inch steel tube. The threaded member 54 is a ¾ inch×6 inch metal rod.
A joist tube 56 connects to the threaded member 54. As best illustrated in
With continuing reference to
A joist bracket 66 attaches to at least one of the joists to communicate loading from the manufactured building through the joist tube 56 to the ground. In the embodiment illustrated in
In the illustrated embodiment, the first angle member 68 is 48 inches long. Two openings 76a and 76b are spaced 15¾ inches from a central opening 76c for joists on 16 inch centers. Two openings 76d and 76e are spaced 7½ inches from the respective adjacent opening 76a, 76b to accommodate joists on 24 inch centers. The depending back 74 defines a pair of openings 82 spaced 16 inches apart and 16 inches from the respective end of the angle member 68.
The second angle member 70 includes a leg 84 that contacts the joists and a depending back 86. The angle member 70 is 38 inches long and the leg 84 defines two openings 88. In the illustrated embodiment, these openings are spaced 3 inches from the respective distal end and 32 inches apart. Fasteners 78 may be used to secure the second angle member 70 to the joists 26. The depending back 86 defines a pair of openings 90 spaced 16 inches apart in alignment with the openings 82 in the first angle member 68. Bolts 92 extend through the aligned openings 82, 90 and receive nuts 94 to connect the first and second angle members 68, 70 rigidly together.
It is to be appreciated that larger diameter helix members, multiple helix members, longer length shafts, or combination can be used with the anchor pier of the present invention to achieve higher load holding capacity or for use in less dense soil or ground. The anchor pier and the cap can be made of steel, plastic, or other suitable material.
While the embodiments discussed above provide lateral support with longitudinal movement of the joist tube 56 (and/or the adjustable connector 160),
With reference to
The threaded T-bolt 52 is placed between the walls 42 of the bracket 40. The bolt 48 extends through the opening in a first side wall 42, through the tube 50 and through the opening in the opposing side wall 42. A nut attaches to the bolt 48 and loosely tightened.
With reference to
Returning to
In an alternate embodiment (not illustrated), the joist tube 56 pivotably attaches to the joist bracket 66, and the T-cap 60 attaches to the opposing end of the joist tube to bear forcibly against a bracket, such as an L-shaped angle member, attached to the ground pan 24.
Yet another alternate embodiment welds the joist bracket 66 directly to the end of the joist tube 56. With the lower end of the joist tube 56 pivotably connected to the ground pan 24 through the T-bolt 52 and the connector 44, the support pier in this embodiment provides both tension and compression load resistance.
It is to be appreciated that side walls of the manufactured building 10 which are transverse to a longitudinal axis of the support beam 14 (or parallel to the spaced apart joists 26) may likewise define openings requiring support. An embodiment of the support pier 12 gainfully supports the portion of the manufactured building 10 proximate the opening. This application of the present invention may use only the first angle member 68 rather than the attached first and second angle members 68, 70 that define the joist bracket 66. The first angle member 68 secures with fasteners 72 extending through the openings 76 to a single joist 26 transverse to the support beam 14 and spaced inwardly of the rim joist 29. Alternatively, the first angle member 68 attaches to the rim joist. The joist bracket 66 thus attaches to one joist 26 rather than spanning across several spaced-apart joists 26 as depicted in
With reference to
With reference to
The joist bracket 66 attaches with fasteners to the joist 26. The T-bolt 52 attaches to the connector 144 and the threaded member 54 engages the nut 58. The joist tube 56 receives the T-cap 60 and then pivots into alignment with the joist bracket 66. A wrench is used to rotate the nut 58 and cause the joist tube 56 to move longitudinally as the nut moves on the threaded member 54. This moves the joist tube 56 into forcing contact with the joist bracket 66. The support pier 12a then transfers loading from the manufactured building to the ground. An embodiment in which the joist bracket 66 is welded to the joist tube 56 resists compression and tension load forces.
The alternate embodiment of the support pier 12b illustrated in
While the embodiments discussed above provide lateral support with longitudinal movement of the joist tube 56 (and/or the adjustable connector 160),
In the second embodiment, the distance between the connection of the joist tube to the connector and the joist bracket is measured, and a distal portion cut-off. The joist tube receives the T-cap 60 or other bearing member. The manufactured building is raised slightly (for example, using a screw jack or inflatable jack or the like). The joist tube 56 is pivotably moved to be diagonal between the ground member and the joist bracket 66. The jack is lowered to move the manufactured building into bearing contact with the T-cap 60 or other bearing member.
The present invention accordingly provides the support pier for the lateral portion of a manufactured building proximate a side wall that has an opening, that experiences increased structural loading (such as from a chimney or fireplace) or the manufactured building is located at a site that experiences increased roof loading (such as snow), with the joist tube attached to a ground pan at one end and an opposing end that bears against the joist bracket proximate the lateral portion of the building requiring pier support. The ground support member disposed on the ground laterally and inwardly of the outside face of the side wall 32 of the manufactured building, positions the ground support away from ground most susceptible to water saturation and thus less susceptible to ground heave or movement caused by freezing and thawing weather conditions. The embodiment using the ground anchor as the ground support member aligned with the side wall of the manufactured building disposes the helical flights below the frost line. While this invention has been described in detail with particular references to illustrated embodiments thereof, it should be understood that many modifications, additions and deletions, in additions to those expressly recited, may be made thereto without departure from the spirit and scope of the invention.
Claims
1. A support apparatus for supporting a lateral portion of a manufactured building having a support beam, comprising:
- a ground member for being received on a ground surface beneath a manufactured building having a portion thereof lateral of a support beam;
- a joist bracket attached to at least one joist within the lateral portion of the manufactured building;
- a joist tube disposed between the ground pan and the joist bracket,
- whereby the joist tube bears against the joist bracket and the ground member for transferring a load from the lateral portion of the manufactured building to the ground and thereby supporting the lateral portion of the manufactured building.
2. The support apparatus as recited in claim 1, further comprising a mover assembly operatively engaged to the joist tube for moving the joist tube longitudinally from a first position to a second position,
- whereby the joist tube being moved longitudinally by operating the mover assembly bears against the joist bracket and the ground member for transferring the load from the lateral portion of the manufactured building to the ground.
3. The support apparatus as recited in claim 2, further comprising a connector for pivotably connecting a first end of the joist tube to the ground member and the second end of the joist tube bears against the joist bracket.
4. The support apparatus as recited in claim 3, further comprising a cap member disposed at the second end of the joist tube for bearing against the joist bracket.
5. The support apparatus as recited in claim 4, wherein the cap member comprises:
- a base member that matingly engages the joist tube at the second end; and
- a bearing member rigidly attached to the base member for bearing against the joist bracket.
6. The support apparatus as recited in claim 5, wherein the bearing member comprises a rod having a longitudinal axis transverse to a longitudinal axis of the base member.
7. The support apparatus as recited in claim 5, wherein the second end of the joist tube is open and the base member is received therein.
8. The support apparatus as recited in claim 2, wherein the joist tube comprises an open ended elongated tube; and
- the mover assembly comprises: a rotation member disposed at the first end of the joist tube and defining a threaded opening coaxial with the tube; and a threaded connector for theadably connecting to the rotation member, the threaded connector pivotably connected to the ground member.
9. The support apparatus as recited in claim 8, further comprising:
- a U-shaped bracket having opposing legs and a base that rigidly connects to the ground member and the legs defining aligned opposing openings;
- an axle mounted between the opposing legs for pivotable positioning thereof relative to the ground member; and
- the threaded connector attached to the axle and extending therefrom.
10. The support apparatus as recited in claim 9, wherein the axle comprises a threaded bolt having a nut for securing the bolt in the opposing openings of the U-shaped bracket.
11. The support apparatus as recited in claim 1, wherein the joist bracket comprises an angle member that defines a plurality of openings for receiving fasteners therethrough for attaching the joist bracket to a joist of the manufactured building.
12. The support member as recited in claim 1, wherein the joist bracket comprises a first angle member and a second angle member, each having a leg and a back, the backs each defining at least a pair of openings for receiving fasteners so that the first angle member and the second angle member join together back-to-back therewith, the leg members each defining spaced-apart plurality of openings for receiving second fasteners for attaching the joist bracket to at least one joist of the manufactured building.
13. The support member as recited in claim 1, further comprising a plurality of blocks stacked on the ground member to support the support beam.
14. The support member as recited in claim 1, wherein the ground member comprises a ground pan having a planar base and at least a pair of opposing sides extending in a first direction substantially perpendicular to the base for being embedded in the ground.
15. The support member as recited in claim 8, wherein the ground member comprises a ground anchor having an elongated shaft with at least one helical flight disposed proximate a first end and a connector attached to an opposing end of the elongated shaft for pivotably engaging the joist tube.
16. The support apparatus as recited in claim 15, wherein the connector further comprises:
- a U-shaped bracket having opposing legs and a base that rigidly connects to the elongated shaft and the legs define aligned opposing openings;
- an axle mounted between the opposing legs for pivotable positioning thereof relative to the ground member; and
- the threaded connector attached to the axle and extending therefrom.
17. The support apparatus as recited in claim 16, wherein the axle comprises a threaded bolt having a nut for securing the bolt in the opposing openings of the U-shaped bracket.
18. The support apparatus as recited in claim 4, further comprising a second mover assembly operatively disposed between one end of the joist tube and the cap member for moving the cap member from a first position to a second position bearing forcibly against the joist bracket.
19. The support apparatus as recited in claim 18, wherein the second mover assembly comprises:
- a rotation member disposed between the joist tube and the cap member and defining a threaded opening coaxial with the joist tube; and
- a threaded member for theadably engaging the rotation member, the threaded member connected to the cap member.
20. A method for supporting a lateral portion of a manufactured building having a support beam, comprising the steps of:
- (a) positioning a ground member on a ground surface below a lateral portion of a manufactured building;
- (b) attaching a joist bracket to at least one joist within the lateral portion of the manufactured building; and
- (c) disposing a joist tube in bearing contact between the ground member and the joist bracket,
- whereby the joist tube bears forcibly against the joist bracket to support the lateral portion of the manufactured building.
21. The method as recited in claim 20, further comprising the step of (d) longitudinally moving the joist tube from a first position with a first end of the joist tube spaced from the joist bracket to a second position.
22. The method as recited in claim 20, wherein longitudinally moving the joist tube comprises rotating a nut on a threaded member pivotably attached to a connector of the ground member, the nut contacting the joist tube which moves in response to rotating the nut.
23. The method as recited in claim 20, further comprising the step of inserting a cap member in an open distal end of the joist tube for contactingly bearing against the joist bracket.
24. The method as recited in claim 23, further comprising the step of assembling the cap member by rigidly attaching a bearing member to a base member that is received in the distal end of the joist tube.
25. The method as recited in claim 20, further comprising assembling the joist bracket by connecting a first angle member and a second angle member together, each angle member having a leg and a back, the backs each defining at least a pair of openings for receiving fasteners so that the first angle member and the second angle member join together back-to-back therewith, the leg members each defining spaced-apart plurality of openings for receiving second fasteners for attaching the joist bracket to at least one joist of the manufactured building.
26. The method as recited in claim 20, wherein the ground member is disposed under a support beam of the manufactured building aligned with a floor joist that is substantially medial an opening in the side wall to distribute the loading of the building to the outside edges of the opening.
27. The method as recited in claim 20, wherein the joist bracket attaches to the floor joist spaced inwardly of an outward side of a perimeter rim joist.
28. The method as recited in claim 20, further comprising the step of moving a cap member at one end of the joist tube from a first position to a second position forcibly bearing against the joist bracket.
29. The method as recited in claim 20, wherein step (a) positioning the ground member comprises the ground member comprising ground pan with at least two opposing perimeter walls extending substantially perpendicularly in a first direction which perimeter walls are pushed into the ground.
30. The method as recited in claim 20, wherein step (a) positioning the ground member comprises rotating a shaft having at least one helical flight into the ground.
Type: Application
Filed: Jun 6, 2011
Publication Date: Dec 6, 2012
Patent Grant number: 9206580
Inventors: Scott E. Oliver (Linden, TN), Daniel L. Oliver (Linden, TN), John A. Oliver (Linden, TN)
Application Number: 13/154,289
International Classification: E02D 27/48 (20060101); E02D 27/32 (20060101); E02D 27/50 (20060101);